Re: [cobalt-users] Adjusting TTL for domain change

[Jeff Lasman <jblists@xxxxxxxxxxxxx>]

baltimoremd@xxxxxxxxxxxxxxx wrote:

> Hmmm, block-head mode on, where would I, using the trusty GUI point
> both ip#s to the same site?

You wouldn't use the gui.  In fact i'm not sure there's an easy way to
do it on the RaQ <frown>; the virtual hosting is well "interesting".

The way I do it on non-RaQs is to create duplicate virtual site blocks
for the new IP# for all the sites (copy and paste, search and replace),
then restart apache.  Very inappropriate on a Raq.  Only way I can think
of doing it is to create new sites with refreshes and rewrites.  A pain.

And to add insult to injury, if the IP#s are on different networks,
another NIC card, etc., and so forth.  Relatively easy on non-RaQs; not
so easy on the RaQ.

In fact, I take back the whole thing as it relates to a RaQ <frown>.

I've just had the scenario at a colo; I had to renumber a RaQ to get
more IP#s.  I went with hooking up a second ethernet cable to the second
port, turning it on for the main number of the new C-class (so email
will continue to work); then changed to a low TTL.  Now I'm almost ready
to move the IPs.  Most of the sites will probably fail to resolve for a
while <frown>.  But the mail will go through.

> Having done that, would I need to change
> the TTL, or is the outside world going to see the second IP, then not get
> upset when the first one disappears after a week?

See above. Unfortunately.

Jeff
-- 
Jeff Lasman <jblists@xxxxxxxxxxxxx>
Linux and Cobalt/Sun/RaQ Consulting
nobaloney.net
P. O. Box 52672, Riverside, CA  92517
voice: (909) 787-8589  *  fax: (909) 782-0205